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(No ModeL) A. O. KITTREDGE & J. J. HOGAN.

RADIATOR GOUPLING.

' No. 450,160. Patented Apr. 14,1891.

ii ll "lllllllllllllllll ummmmmii UNIT D STATES ATENT OFFICE.

ANSON O. KITTREDGE, OF SLATE HILL, AND JOHN J. HOGAN, OF NEW YORK, ASSIGNORS TO THE HOGAN ENGINEERING COMPANY, OF NEWV YORK, N. Y.

RADIATOR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 450,160, dated April 14, 1891.

Application filed December 13, 1888- Serial No. 293,433. (No model.)

To all whom it may concern.-

Be it known that we, Anson O. KITTREDGE and JOHN J. HOGAN,.citizens of the United States, residing, respectively, at Slate Hill, Orange county, New York, and in the city, county, and State of New York, have invented certain new and useful Improvements in Radiator-Couplings, fully described and represented in the following Specification and the accompanying drawings, forming a part of the same.

This invention consists in a particular means for couplingthe separate sections of radiators or cast-iron boilers together by means of an internal sleeve, the construction of which is shown in the annexed drawings, in which Figure 1. is a side view of a radiator section or loop adapted for coupling by such sleeve, showing the face n adjacent to the seat d. Fig. 2 is a section through two of such loops on line :1: cc in Fig. 1. Fig.3 is a side view of the sleeve; Fig. l, an end view of the same with a coupling-collar applied thereto; and Figs. 5 and 6 are respectively side and end views of the coupling-collar.

a are the circulation-tubes of a common form of radiator-loops, adapted to be coupled together in a series to form a heating-radiator.

b is a chamber at one end of the loop and provided at its opposite sides, respectively, with the internal-threaded aperture 0, and the aperture having a tapering seat (Z flared in- Wardly.

e is the coupling-sleeve having at one end a thread f, fitted to the thread 0, and h is a collar fitted internally to the sleeve and of conical form externally to fit the seat d. The sleeve is formed with a cylindrical seat I, having an annular V-shaped groove g, and the interior of the collar is provided with a V- shaped .rib 1'. An aperture with flattened sides m is formed through the sleeve to permit the circulation of steam or water through the same, the flattened sides serving to fit a wrench for turning the sleeve within the chamber b.

The collar h'may be divided at one side only, as shown in Fig. 4, or into two parts, as shown in Fig. 6, to permit its introduction into the chamber I; through the aperture of the seat cl, the collar being made thin enough to press together with its ends overlapped it divided at one side only.

The thread f is preferably projected above the cylindrical seat Z, and the seat dis formed large enough for the insertion of the sleeve within the chamber by passing such thread through the same.

In applying the coupling to unite tworadiator-loops or boiler-sections the collar h, preferably divided at one side only, is compressed sufficiently to insert it within the chamber with the larger end of the cone adjacent to the thread c.- The sleeve with its smooth end in advance is then inserted through the tapering seat d, and the seat Z is pressed within the collar, expandipg it sufficiently to open the small rib t' until the latter slips into the annular groove g. The face at adjacent to the thread 0 of another radiatorsection is then applied to the face adjacent to the tapering seat (Z, and the sleeve is screwed into the thread of such adjacent section by inserting a suitable wrench within the sleeve and turning it around. The screwing of the sleeve into the thread 0 draws the collar 7t forcibly into the tapering seat d, and thus presses the faces at of the two sections or loops together. The pressure of the seat (Z upon the exterior of the collar jams the rib i closely into the groove (1, by which the collar is held firmly uponthe sleeve, so as to practically be come a part of the samein forming the coup ling-joint. The joint between the radiator sections or loops is preferably made upon the opposed faces n, between which a packing n may be applied, if desired, and it is thus immaterial whether the sleeve and the couplingcollar form steam'tight joints with the thread 0 and the seat (1, respectively.

By this construction of coupling the pre- 0 pared sections are readily united together, and the coupling is also very cheap and effective, and the joint between them is easily made tight by a suitable packing between the faces a.

In practice the conical ring it is made much lighter and thinner than is shown in the drawings, where it is represented larger than its proper proportions, in order to show its construction clearly; By making itlight and thin it is more cheaply constructed, is more readily applied to the end of the sleeve 6, and is more readily pressed into close contact with the tapering seat d when applied.

It is obvious that the radiator-coupling described herein may be used in coupling together any castings having the chambers b therein and provided at their opposite sides,

respectively, With the internal-threaded aperture c and the aperture having the tapering seat d. Such sections are shown in the boiler patented to John J. Hogan September 3, 1889, No. 410,162 and contain the same features (which render our coupling-sleeve applicable thereto) as the radiator-sections shown herein.

Having thus set forth the nature of our invention, what we claim herein is 1. The combination, with the sections at, having thechambers Z), provided, respectively, at their opposite sides with a threaded aperture c and an aperture having tapering seat (Z, of the sleeve 6, formed at one end with thread f and at the other end with aV-shaped groove g, and the collar h, having conical exterior and provided internally with the V- shaped rib t', the whole arranged and operated substantially as herein set forth.

2. The combination, with the sections a, having the chambers I), provided, respectively, at their opposite sides with a threaded aperture c and an aperture having tapering seat (I, of the sleeve 6, having an aperture through the same formed to fit a wrench and provided ANSON o. KITTREDGE. JOHN J. HOGAN.

\Vitnesses:

THos. S. CRANE,

HENRY J. MILLER. 

